Lumber-splicing machine



March 10, 1931. 1 BEERWQRTH 1,796,185

LUMBERSPLICING MACHINE Filed Oct. 8. 1928 3 Sheets-Sheet l Jesse A. Eeer'wurTH Thaw-[E 5 March 1931 J. A. BEERWORTH 1,796,185

LUMBER SPLICING MACHINE Filed Oct. 8. 1928 3 S he etsSheet 2 INVENT Jesse A Erazr'wnrfifi ATTORNEYS.

Man-ch10, 1931. J. BEERWQRTH 1,796,185

' LUMBER SIPLICING momma:

"Filad Oct. 8, 1928 3 Sheets-Sheet 5 gwumtoz isplie d. at the endsby t ei prove m in 7 Patented Mar. 10, 1931 JESSE A. B ERWQ T Q F ASHEVILLE, NORTHCAROLINA LUMBER=SPLICING MAGHINE -'-.Applicationf filed October 8,1 192s. .wseriaicno; 311 208.

- This inyention relates to, improvements ,in ,-,maeh ne f0 conditi ng lumber Zlt is the primary punposeiof this-invention to provide a machine-;,whi chwill! ificiently s surv-fa ethe ends lof a plurality of sections of i lumber in :QBdGIL that theygnay be, intenfittedin a tight fitting, substantial-1y sealed; 1' oint. {E1161 inyentiqn findsapplication in the wood tworking art, yinnder; that lllIIlbGI:.2WhiQh -1S I '10 ioigdina izilyqvastedmay be; economically used.

;1 h s,us lengths ot lumber ar ro di aly -v1gfi ,I;' C1;(-}d asiwaste. With the i nproved ma- :e eta sp ici g-sect on m y: be i c rp a e in a hort; piece ofslumberm w olm o e s r eng hs o lumb mayeb -.-p p. ly

, and subsequently connected, as hy gluing; to provide, a length; of dumber; 0i a pmper' stock i size, iii-which Zthej oint is substantiallywconcealed and. as =str0ng;'-as ;the; 1un1ber at any cross-section. 4 7 The improved ,machine, is further ;used Lupe hig -1 gr lum er onlb ardswfo h emovingiof. 'k o d se -ion andcondio ing the; ends of the lumben seetions outset I which ithesp i e is .wlt i ISO that, th y-may be interfitted with a substantially .GQncealed Joint. a

' A furthen object1 )f thisinvention is; the p ovisionofz n impro ed me hQ 0i sp i ng 1 a, plurality of, sections of dumber..- With; a .neat and; durable jointed 1 connection.

Other vQbjectsa advantages offt s we non willbe apparent during theeounse, of the following-detailed description. I

in the; accompanying drawings, forming; a ,pa t .of t is sp ci a ion, an Whereinsim lar deference characters ifdesignate eonresponding parts throughout thewseyeral views, 40 Figure; l is; apl anview ;0f the improved splicingmaehine, e I Z-Figu e Q is; a perspe'etivey-iew of thei'ear 0f the improyedmachine.

s. Figure 3 -is aseetional View of the maehine taken on the .line,3-#3 of Figure 1.

vboarderlumber sothatatjoint of a plurality ,Figure Q, of the-drawings thebedis, zprei rably; provided withsubstantially N -shaped grooves 16 thereaeposs within-(which: theeV- Y shaped ribs 1? 0n the bottomofithe carriage & Figure 41S a-perspectiye View showinghow .1 an endfof aseetioniofilumberis @repaydmith theiinproved machine.

Eigure 5 is. a v uiew 'ishowing ,a, iplur'ality of sections-Which are spliced, .tqgethep-withftheii vends, .approp1;iately: eonditionednby {the ,im-

2 proved .spligingnmaehineaso that, theymay interfit properly.

iEigureG isa plan yiewshowing: anpiecmof board 301' lumber, iormed 0f,- a lpluralityr M3 splicing sections; the adj aeentrpreximate ends of which have been conditionedby ,the simprovedsplicing machine.

In the drawings, wherein 35011: the, purpose .0f111ustrat1on lsjshoumonly1 a prefer-med: ensbodi-ment of the invention; the (letter A- 1nay generally design ate the impnovec1,,sp1iciixg maehlne, h umayi censmtob a trainee B v havinga table onbed C thereon, upomwhizch ,a slidahlet carriage ,C' ;,is ,positioned. 42A,;

.,mQ tO T D is icariried hy thecarriage Gf,,having ashaft E,up0n which, a beVeL Cutting .sawg-F ,is placed. A. carriage G is iproyidedtfoi supporting; a stand; Hmpon which ,lumben .-is Isitioned for; a .beyeI euttingpperatiouby ,the n sawF. A eutter- -head K ispiioyidedq-upon the, shaft E, and, apparatus L supports-a ,board or. lumber ,in .p vopen cutting 'i'elation with the cutter head K tofinish the end of 'rthe ofseetions of the lumber may be -p1-oyided according to this invention.

The. 'firame B prefflrably sqnsists; 0f rear legs. and ,uprig'htsi 10,1 and shonterf I lQIlG uprights. 11,. a11 of, angle iron .01! -other;- approit .Pllflte constl uotien; the same; preferably be" 111g connected by front lioitizontalibraeesi 12 and side erossbraees 13. The bedG-isboited 'asat 15t0 the legs 10 and, 11,;andassh0wnin C.- slide to, guide, the inoyement ;of-, the ear- The standards at the upper ends thereof are preferably connected by a horizontal brace 18, bolted at 19, as shown in Figure 2; this brace 18 having a substantially U-shaped part 20, which is offset forwardly and adapt- 'ed to support parts of the meansL to be sub sequently described;

On the slidable carriage c is detachably mounted an electric motor D; the shaft E of which is disposed with its axisat right angles to the direction in which the bed C may be slid. At one end, preferably extending be yond' thebed C, the shaft E has the circular 'saw F keyed therewith, positioned with re-; spect to the device H to cut a bevel on boards placed thereagainst. I v

The frame B furthermore is provided wlth a saw carriage base supported by brackets '26 at'an elevation above the bed (landv beyondan end of the same; the brackets 26, as

shown in Figure 2 of the drawings being secured upon the legs of-tlie frame'B. The r 1 carriage base 25 is provided with grooves 27 paralleling the grooves '16 above mentioned, and the carriage G, adapted to slide upon the base 25, has ribs 28 on the under surface thereof adapted'tdseat in the grooves 27 so that the carriage G may be moved parallel with' the adjustmentof the carriage Cs.

This movement of th'e'carriage C, of course, takes place in a-hne parallelwith the plane of 1 the circular saw F.

' The device H includesa, board supporting 'stand' 30, the same'being preferably a cast 'ing, and including abottom 31 bolted at '32 to the carriage G, as shownin'Figure It is provided with upstanding walls 33 and a slanting platform 34 disposed at an angle to the perpendicular, and upon the upper surface of which boards may be'supported at an angle to the vertical, so that theilower ends thereof nay'be severedat an angle, or on a bevel, by the saw F, as the carriage G is 'moved along the frame B. To hold the boards plumb or in "proper alignment upon v thexplatform 34, one of the walls 33 of the support 30 is extended upwardly to provide a guide flange 36 extending in rightangled r 1 frelation'from the planeaof the platform 34,

and at a side thereof, against which the sides of the board'which is to be out upon the bevel i r is abutted, for obvious purposes. "1 V The apparatus H furthermoreincludes an 7 adjustable stop 40 supported in any approvedrelation for movement by thebed C ina line parallel withthe shaft E; the stop 40 preferably being plane in formation, and being disposed at the opposite side] of the saw blade F with respect to the stand'3(l,and p V 7 board upon which the bevel is to be cut, thereagainst, to steady'the same prior to and duradapted to receivejth'e lower edge of I the ing] the bevel cutting operation inia manner "which will be apparent to those skilled in the art. This adjustable stop 40 preferably adjusted towards and away from the saw blade F by means of an adjusting bolt o-r screw 42, rotatably supported upon'a bracket arm 43 carried by the leg '10. A U- shapedbracket44 is detachably connected at45 to; the adjustable stop 40, having a screw threaded opening which receives the screw 42 therein, sothat upon rotation of the'latter the stop plate 40 may be adjusted towards and away from the blade F to regulate the distance at whichthe boardto be bevel cut is positioned with respect to the saw blade F, so that boards of different'thicknesses' may be properly bevel cutthru theentire thicknesses thereof. r

the location of work.

After the board or lumber has been bevel cut'by the means above des'cribed,jand the splice piece, or the section to which it is to be connected hasfbeen correspondingly cut, the sections of lumber are then supported and held byfthe means L whileithe cutter head K operates thereon to cut grooves and ribs, of preferably a V-shapedformation along the bevel'cut surface.- 'Mo'reparti'cularly, observing Figures 3, 4, 5 and 6, it will be seenfrom the former that a piece of lumiber 50V'has beeubevel cutat'a'n endfthere= of, and-the cutter K. is then brought into play' to cut parallel V -shaped grooves 51 along the bevel cut surface; this'of course leaving V-shaped ribs '52 between said grooves having uniformly spaced centers.

With such conditioningof the'boardsor' lumber, short'sections of lumber, which have ordinarily been considered waste material may [be properly used,'asshown inFigures 5 and 6, which show end sections 53 and 54, bevel cut at 55 and 56 from theirupper and lower surfaces respectively. One or more intermediate or splice SBCtlODSfiT may be: similarly bevel cut at the opposite ends thereof, as shown at 58, for an interfitting tongue and groove connection with the bevel cut ends ofthe sections 53 and -'54, so that the sections may be assembled as shown in Fig- ,ure 6 to provide a continuous board or length of lumber which is'sufiiciently long that it either exactly corresponds to a desireduseful length, orwhich may be cut at either of the ends thereof to the proper length. Of course, the bevel tongue and groove surfaces as thus cut, are glued together, and in such manner {that the splice or connections are stronger than the fiber section of the lumber itself. This is all done at a very low cost, and in an entirely Practical'manner drawings. '7 lheframe 7 9 is pivotally connect- 'ecl.at 109 to a conneoti-ng'rod 110; the connecting rod 1 10:being connected' at 111 with the'outer end of a lever 112 which is keyed upo'n a square portionofthe shaft 103, as

together in the manner-above described." The j'oint'is asort of tongue and groove o1nt-, and 4 -the faces-may be so accurately cutbythemashown in Figure The pressure of the treadle' lOOof courseslides the frame 79 up- Y wardlyuntil the bevel end of the board 50 rides against the'cutterK and the grooves are cut as shown in igure 6', into the bevel end In addition to splicing to provide lumber of the the invention may be used the ends" of the lumber may then b'e'spliced chine Athatthe' splice or joint Willbe prac- '-tical-ly concealed and invisible in the finished The glue may provide a bond belumber.

tween the bevel grooved-surfaces, and of movement therewith, adriven shaft for the course other means of connection may be provided 1f de'slred.

I Various changesin the shape, size, arrangement ofparts, and'alteration in the steps of forming the joint may be made to the invention as above described, 'and' as herein claimed, Without departing from the spirit of theinvention or the scope of the claims. I'claim;

I 1-:Inawoodcutting machine of the class described a frame,fa sliding carriage on said frame, a motor: on :sald sliding carriage for motor, a fsecond carriagelslidable on the frame in substantlalparallelism With the line I of movement of the first mentioned carriage,

a cutting'blade onsaid driven shaft, means for-supporting lumber-on the second carriage forbevel ici1tting'bythe said blade, a cutter head on'said'sha'ft, and means for supporting the' l'umber after it hasbeen cut in axbeveled relation so that the bevel surface thereof may ment of the latter upon rotation of the shaft.

- jbe'further-cutby said cutter head.

2 In a cutting machine of the class described a frame, a rotary cutter on the frame,

' "a carrier movablejin a linear direction on the frame tangential to the cutter, saidcarrier having apocket therein, Wedge meansin the .cutting relation with the cutter, a

pecker for holding a length of lumber in a lever,:and means connecting said lever With the carrier for movement of the latter so that the work a [will move into cutting engagement the outterupon operation ofsaid lever. I

' 3. In a cutting machine of the class described a frame, an upstanding Wall-on the frame having an openingthere n, a -rotary cutter carried by the'frame and operating thru said opening'so that'the cutting portion "of the cutter extends beyond the'opposite sur "face ofthe; Wall thru the opening of the a en-work carrier 'slidable on the opposite side of-the WEtll' from the cutter in a line parallel Withv the'plane of the Wall, and

means for "holding Work in thecarrier in an acute angled relation to the linelof movement of the carrier and into a cutting relation with the cutter. r 1 I 4:; In a cutting machine of the class describedza frame, a rotary groove cutter rotatable on'the' frame, an upright'vvall carried by the frame, said Wall having an opening thru which the groove cutter extends in a cuttingprojecting relation'at the opposite side 'ofsaid Wall from the cutter, means for i-moving the cutter bodily to various extended degrees Withinsaid opening, a 'slidable carrier upon said Wall, and means on the carrier forsupporting Work so that'itmay move into groove cuttingrelation with said cutter.

frame, a vertical Wall having an opening therein,a' rotary cutter atone side of the Wall extendingin cutting relationthru said opening tothe opposite side of the Wall, a

carrler slidable on the Wall at the opposite side from the cutter, saidcarrier having a' V-shaped pocket therein for supportinga piece of Work at an angle to the lineof'movement of the carrier," and edgemeans for clamping the WOIk' in such position within said pocket. r r

6, In a'cutter of the class described a frame, a vertical Wall having an opening therein, a, cutter at one sidevof the all extending in cutting relation thru said opening to the opposite side of the Wall, a' carrier 5 'slidable 1011 thezvvall at the opposite side from the cutter, said carrier. h'aving'a V-shaped pocket therein for supporting a piece of Work at anangle to the line of movement of the carrier, edge meansfor clamping thevvork in such position within said pocket, said wedge means comprising a Wedge body, a

shaft r'otat'able on the carrier, and a connectmg linkeccentrically connected on said shaft and connected to said Wedge body for move- '7."In a cutting; machine of the class described a frame, a rotary cutter on the frame, a Work supporting carriage'movable on'the '5. In a cutter of the class described a ion on the shaft, a flexible band connected with V the lever intermediate its ends and with the Wheel and extending partially about the wheel-to connection thereon at a point remote from the connection Withthe lever whereby upon movement of the lever the 'wheel and its shaft may be rotated thru an arc, and means connecting said shaft and the carrier for movement of' the latter upon movement of said lever. w v

8. In a cutting machine of the class described a frame, a rotary groove cutter, a carriage slldably' supportingthe' rotary groove cutter, an upstanding wall carried by the frame having an opening therein, means for adjusting thecarriage so that the cutter operates through said opening at the opposite side thereof from said cutter axis, a carriage on the upstanding Wall means to move the latter carriage, and means on the latter carriage for clamping a piece of work therein at the opposite side of the upstanding m Wall from said cutter axis and in such relation that an end thereof may be moved into cutting relation with the cutter across said opening.

JESSE A; BEERWORTH. 

